nitrogennitrogen /ˈnaɪtrədʒən/ ●●○ noun [uncountable] (symbol N) 
science, chemistry a gas that is an element, has no color or smell, and is the main part of the Earth’s air
science, chemistry a gas that is an element, has no color or smell, and is the main part of the Earth’s air- life story
- lifestyle
- life support
- life-threatening
- lifetime
- life vest
- lifework
- lift
- lift-off
- ligament
- light
- light aircraft
- light bulb
- light-emitting diode
- lighten
- light energy
- lighter
- light-fingered
- light-footed
- light-headed
- light-headedness
- light-hearted
- light-heartedly
- light-heartedness
- light heavyweight